When you display a file and you see colors, it means there are characters in the string that are lower than a blanks X’40’. Do a DSPPFM and the do F10, then F11. Now you can see the contents in HEX. Find the bad value. I it is always in the same position, a quick replace with a blank will fix it. It they are in different positions, you will need to do a scan and replace with a blank.